Revolving-grip screw driver and the like



Sept m2,

REVOLVING GRIP SCREW DRIVER AND THE LIKE INVENTOR Ill .2 g

Filed May 25, 1,937

ATTORN EY WITNESS:

Patented Sept. 4, 1928. ii ill tiai fistaa;

f ajisliififi Sar a 15$ Feiiiiaildil rlttt FRED G. POST, OF KENMORE, NEW YORK.

REVOLVING-GRIP SCREW DRIVER AND THE LIKE.

Application filed May 25, 1927. Serial No. 194.183. I

This invention relates to tools, particuever as to the exact type of tool to which. larly the.handle structures therefor, and has the invention is to be applied. In this in for its object the provision of a novel handle stance, the letter A designates the shank of structure for a screw driver, gimlet, drill or the screw driver or other tool, B designates" W7 the like. so constructed and arranged that the handle, generally. and C represents the it will require only one hand of the user to invention. In carrying out the form of the effect the proper turning movement, the ininvention, disclosed in Figures 1 and 2,1 vention contemplating the provision of a provide a metallic ferrule 10 of cylindrical knob or button or relatively fiat form roform. which is telescopically engaged upon m tatably mounted upon the end of the handle the end of the handle B, it being preferable in position to engage within the palm of the that the extreme end portion of the handle users hand so that the tool equipped with be somewhat reduced at 11 so that the outer the handle may be turned step by step as is surface of the ferrule 10 will be flush with necessary and understood. the periphery of the handle. However, this 7 An important object of the invention is to 15 a detail which may be varied within limit. provide a handle of this character having At spaced points, the end portion 12 ofzthe various ways in which the swiveled end ferrule extends over the end of the handle, member or button-like element may be and is provided with inwardly pressed mounted to facilitate its rotation, the various curved portions 13 for ,the accomodation of A modifications in this respect taking care of bearing balls 14 which; are prevented from variations in the material of which the han displacement by their; engagement within dle may be formed. these seats. At a point substantially op- Another object'ofthe invention is to proposite the end of thefl iandle, .the ferrule 10 vide a handle of this character in which the is formed with tin-outwardly extending bead 2 provision of the rotatableor swiveled button 15 which is of greater diameter than the member will prevent chafing of the palm cyllndrical portion of the ferrule where it of the users hand, as the hand is turned 1s engaged upon the handle B. back after each partial rotation of the tool. The numeral 16 designates the cap or-but- An additional object is to provide a deton which is of circular form and which is d5 vice of this character which will be simple crimped about the bead 15. The cap 16 is and inexpensive to manufacture, easy to apthus rotatable with respect to the ferrule 10 ply, positive in action, eihcient and durable and its rotary movement is greatly faciliin service, and a general improvement in the tated owing to its engagement. upon the e bearing balls 14: which will naturally act to With the above and other objects and adreduce friction. vantages in view, the invention consists in In the form of the invention shown in the details of construction, and the arrange- Figure 3, the above described ferrule is re ment and combination of parts to be hereinplaced by a metal plate 17 which covers simafter more fully described and claimed, and ply the end of the handle. I/also provide a illustrated in the accompanying drawings, disk 18 which is disposed upon the plate 17 in which and which is provided at its periphery with Figure 1 is a side elevation of a screw a marginal bead 19 which is concavo-convex driver having a handle constructed in acin cross section. A screw 20 passes through cordance with the invention. 'the center of the plate 17 and disk 18 for mu 45 Figure 2 is a detail sectional View taken the purpose of holding them assembled while on the line 22 of Figure 1. permitting the disk'to rotate with respect to Figure 3 is a view similar to Figure 2 the plate. In this form of the invention, but illustrating a modification, and there is also provided a cap 21 which is Figures 4: and 5 are other views s1m1lar crimped about the head 19 so as to rotate so to Figures 2 and 3 but disclosing still other with th di k 18,

modifications. In Figure 4 the construction is somewhat Referring more particularly to the draW- different in view of the fact that I provide a ings, and especially Figures 1 and 2, it will disk 22 disposed upon the end of the handle be observed that I have disclosed a screw and secured rigidly theretoas by means of Mo c5 driver which is simply for purposes of illusa suitable screw 23. This disk 22 is formed tration, there being no limitation whatsowith a cylindrical portion 24 which projects somewhat beyond the end of the handle and which terminates in an outwardly extend ng bead 25 which is concavo-convex 1n cross sec- "tion and upon which is rotatably engaged the crimped edge 26 of a cap 27.

The form of the invention disclosedin Figure 5 is intended for use in connection with tool handles formed of some combination or plastic material and this form distinguishes from that disclosed in Figure 4 only inthe omission of the above described screw 23, the disk being formed with a plurality of downwardly inclined converging prongs .or performing any other similar act, depending upon the nature of the tool, it is apparent that the button or cap will always remain stationary within the palm of the hand. After completing a partial turn of the tool, to carry out the work intended the operator must necessarily turn his hand in the reverse direction in order to give another partial turn to the tool. Whenever this is done the tool handle will rotate with respect to the cap or button which always remains stationary with respect to the operators hand, and in all forms of the invention it is quite apparent that this rotary movement may occur with ver little friction and with the utmost case. 0 viously, there is no chafin of the palm of the operators hand and t ere is no necessity for him to make a partial turn of the tool and then grasp it with the other hand while be obtains a second grip on the handle. really believed that the construction, operation and advantages will be readily appar-- ent to one skilled in the art without further explanation.

While I have shown and described the preferred embodiment of the invention, it should be understood that I reserve the right to make all such changes in the details of construction and arrangement and combination of parts, as will not depart from the It is.

spirit of the invention or the scope of the subjoined claims.

Having thus described the invention, I

claim 1. A rotary hand engaging means for a tool handle comprising a relatively stationary member disposed upon and extending over the end of a tool handle, means for securing said member to the tool handle, whereby it will be stationary, said member having an outwardly extendin bead at its periphery, and a cap rotatably mounted upon the head, the cap being crimped about the bead to conformingly engage thereagainst.

2. A rotary hand engaging means for a tool handle comprising a relatively stationary member disposed upon and extending over the end of a tool handle, means for securing said member to the tool handle, whereby it will be stationary, said member having an outwardly extending bead at its periphery and a cap rotatably mounted upon the head, said relatively stationarymember being formed with seats, bearing balls engaged upon said seats and constituting supporting means for the rotatable cap.

3. A device of the character described comprising a metallic member disposable upon the end of a tool handle, means extending into the tool handle for anchoring said member with respect thereto, saidv member having an outstanding peripheral bead concavo-convexed in cross section, and a convexed cap rotatable with respect to said relatively stationary member and having a marginal bead conformingly engaging said first named bead and rotatable thereon.

LA device of the character described comprising a metallic member disposable upon the end of a tool handle and having a flanged portion embracingly engaging against and rigidly secured to the handle, said member being of greater diameter than the handle whereby to have an outstanding head portion, a convexed cap embracingly engaging the outwardly projecting edge of said member, said member being formed with seats, and bearing balls engaged within said seats and engaging against the inner side of the cap.

In testimony whereof I aflix my signature.

. FRED G. POST. 

